| Butler, B. C. et AL G-2-54176 | Sure Flow Oil & Gas, Inc. only | McCaskill (Wilcox L-3) | — | 1 | 0 | 0 | Jan 1993 – Apr 2007 |
| Butler, B. C. et AL G-2-54177 | Sure Flow Oil & Gas, Inc. only | McCaskill (Wilcox M-7) | — | 1 | 0 | 265K | Jan 1993 – Apr 2007 |
| Butler, B. C. et AL G-2-54178 | Sure Flow Oil & Gas, Inc. only | McCaskill (Wilcox N-1) | — | 1 | 0 | 0 | Jan 1993 – Apr 2007 |
| Butler, B. C. G-2-59764 | Sure Flow Oil & Gas, Inc. only | McCaskill (Wilcox Slick 7400) | — | 1 | 0 | 495K | Jan 1993 – Apr 2007 |
| Butler, B. C. G-2-69272 | Sure Flow Oil & Gas, Inc. only | McCaskill (Mackhank) | — | 1 | 0 | 0 | Jan 1993 – Jun 2013 |
| Butler, B.C. G-2-127688 | Sure Flow Oil & Gas, Inc. only | McCaskill (Wilcox MF-1) | Karnes | 1 | 0 | 301K | Jan 1993 – May 2007 |
| Butler B G-2-149346 | Sure Flow Oil & Gas, Inc. only | McCaskill (Wilcox Slick 7400) | Karnes | 1 | 0 | 0 | May 1994 – Jul 2013 |
| Butler A304 G-2-247125 | Burlington Resources O & G Co LP only | Wildcat | DE Witt | 1 | 0 | 220 | Jun 2008 – Dec 2009 |
| Lasca Butler Searcy Trust G-2-254301 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Live Oak | 1 | 0 | 672K | May 2009 – May 2021 |
| Lasca Butler Searcy Trust G-2-258558 | Burlington Resources O & G Co LP only | Sugarkane (Austin Chalk) | Live Oak | 1 | 0 | 0 | May 2009 – May 2021 |
| Butler A-304 G-2-259222 | Burlington Resources O & G Co LP only | DE Witt (Eagle Ford Shale) | DE Witt | 1 | 0 | 1.62M | Mar 2010 – Jul 2026 |
| Butler Unit B G-2-263744 | Burlington Resources O & G Co LP only | DE Witt (Eagle Ford Shale) | DE Witt | 1 | 0 | 1.6M | Aug 2011 – Jul 2026 |
| LP-Butler A G-2-263747 | BPX Operating Company only | Eagleville (Eagle Ford-2) | DE Witt | 1 | 0 | 1.42M | Sep 2011 – Jul 2026 |
| LP Butler B G-2-264152 | BPX Operating Company only | Eagleville (Eagle Ford-2) | DE Witt | 1 | 0 | 1.86M | Sep 2011 – Jul 2026 |
| Butler Unit D G-2-265330 | Burlington Resources O & G Co LP only | DE Witt (Eagle Ford Shale) | DE Witt | 1 | 0 | 1.39M | Jan 2012 – Jul 2026 |
| E. Butler A G-2-265520 | BPX Operating Company only | Eagleville (Eagle Ford-2) | DE Witt | 1 | 0 | 1.13M | Aug 2011 – Jul 2026 |
| Butler Unit C G-2-268773 | Burlington Resources O & G Co LP only | DE Witt (Eagle Ford Shale) | DE Witt | 1 | 0 | 2.51M | Jul 2012 – Jul 2026 |
| W. Butler A G-2-271536 | Devon Energy Production Co, L.P. only | DE Witt (Eagle Ford Shale) | DE Witt | 1 | 0 | 0 | Oct 2012 – Dec 2015 |
| Butler Unit B G-2-277555 | Burlington Resources O & G Co LP only | DE Witt (Eagle Ford Shale) | Karnes | 1 | 0 | 1.57M | Jan 2015 – Jul 2026 |
| Butler Unit D G-2-278361 | Burlington Resources O & G Co LP only | DE Witt (Eagle Ford Shale) | DE Witt | 1 | 0 | 2.67M | Jul 2015 – Jul 2026 |
| LP Butler B G-2-281934 | BPX Operating Company only | Eagleville (Eagle Ford-2) | DE Witt | 1 | 0 | 1.9M | Dec 2014 – Jul 2026 |
| LP Butler B G-2-281940 | BPX Operating Company only | Eagleville (Eagle Ford-2) | DE Witt | 1 | 0 | 1.43M | Dec 2014 – Jul 2026 |
| Lasca Butler-Eskew North Usw G-2-283548 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Live Oak | 1 | 0 | 3.9M | Aug 2017 – Jul 2026 |
| LP-Butler A G-2-285961 | BPX Operating Company only | Eagleville (Eagle Ford-2) | DE Witt | 1 | 0 | 1.17M | Sep 2018 – Jul 2026 |
| LP-Butler A G-2-285974 | BPX Operating Company only | Eagleville (Eagle Ford-2) | DE Witt | 1 | 0 | 1.46M | Aug 2018 – Jul 2026 |
| LP-Butler A G-2-285976 | BPX Operating Company only | Eagleville (Eagle Ford-2) | DE Witt | 1 | 0 | 1.16M | Sep 2018 – Jul 2026 |
| LP-Butler A G-2-285977 | BPX Operating Company only | Eagleville (Eagle Ford-2) | DE Witt | 1 | 0 | 1.53M | Aug 2018 – Jul 2026 |
| Musick - LP Butler a SA 1 G-2-286222 | BPX Operating Company only | Eagleville (Eagle Ford-2) | DE Witt | 1 | 0 | 3.16M | Aug 2018 – Jul 2026 |
| Musick - LP Butler a SA 2 G-2-286223 | BPX Operating Company only | Eagleville (Eagle Ford-2) | DE Witt | 1 | 0 | 2.67M | Aug 2018 – Jul 2026 |
| Butler a-304-Brysch Usw D G-2-286582 | Burlington Resources O & G Co LP only | DE Witt (Eagle Ford Shale) | DE Witt | 1 | 0 | 2.17M | Feb 2019 – Jul 2026 |
| Butler a-304-Brysch Usw C G-2-286583 | Burlington Resources O & G Co LP only | DE Witt (Eagle Ford Shale) | DE Witt | 1 | 0 | 3.01M | Feb 2019 – Jul 2026 |
| Butler a-304-Brysch Usw E G-2-287144 | Burlington Resources O & G Co LP only | DE Witt (Eagle Ford Shale) | DE Witt | 1 | 0 | 1.56M | Feb 2019 – Jul 2026 |
| Butler a-304-Brysch Usw A G-2-287175 | Burlington Resources O & G Co LP only | DE Witt (Eagle Ford Shale) | DE Witt | 1 | 0 | 1.27M | Jan 2019 – Jul 2026 |
| Butler a-304-Brysch Usw B G-2-287203 | Burlington Resources O & G Co LP only | DE Witt (Eagle Ford Shale) | DE Witt | 1 | 0 | 1.59M | Oct 2018 – Jul 2026 |
| Butler a-304-Brysch Usw G-2-287204 | Burlington Resources O & G Co LP only | Sugarkane (Austin Chalk) | DE Witt | 1 | 0 | 1.61M | Jan 2019 – Jul 2026 |
| Butler D - Gohlke a Usw A G-2-288429 | Burlington Resources O & G Co LP only | DE Witt (Eagle Ford Shale) | DE Witt | 1 | 0 | 3.05M | May 2019 – Jul 2026 |
| Butler D - Gohlke a Usw B G-2-288430 | Burlington Resources O & G Co LP only | DE Witt (Eagle Ford Shale) | DE Witt | 1 | 0 | 3.24M | May 2019 – Jul 2026 |
| Butler D - Gohlke a Usw C G-2-288431 | Burlington Resources O & G Co LP only | DE Witt (Eagle Ford Shale) | DE Witt | 1 | 0 | 5.3M | May 2019 – Jul 2026 |
| E. Butler A G-2-288545 | BPX Operating Company only | Eagleville (Eagle Ford-2) | DE Witt | 1 | 0 | 790K | Aug 2019 – Jul 2026 |
| E. Butler a AC G-2-288546 | BPX Operating Company only | Sugarkane (Austin Chalk) | DE Witt | 1 | 0 | 314K | Sep 2019 – Jul 2026 |
| Butler D - Gohlke a Usw G-2-288754 | Burlington Resources O & G Co LP only | Sugarkane (Austin Chalk) | DE Witt | 1 | 0 | 1.84M | Jun 2019 – Jul 2026 |
| LP-Butler A G-2-288868 | BPX Operating Company only | Eagleville (Eagle Ford-2) | DE Witt | 1 | 0 | 1.21M | Mar 2020 – Jul 2026 |
| LP-Butler A G-2-288869 | BPX Operating Company only | Eagleville (Eagle Ford-2) | DE Witt | 1 | 0 | 1.19M | Mar 2020 – Jul 2026 |
| LP-Butler A G-2-288987 | BPX Operating Company only | Eagleville (Eagle Ford-2) | DE Witt | 1 | 0 | 1.42M | Mar 2020 – Jul 2026 |
| LP-Butler A G-2-288988 | BPX Operating Company only | Eagleville (Eagle Ford-2) | DE Witt | 1 | 0 | 2.19M | Mar 2020 – Jul 2026 |
| LP-Butler A G-2-288989 | BPX Operating Company only | Eagleville (Eagle Ford-2) | DE Witt | 1 | 0 | 1.84M | Mar 2020 – Jul 2026 |
| LP-Butler A G-2-288990 | BPX Operating Company only | Eagleville (Eagle Ford-2) | DE Witt | 1 | 0 | 1.36M | Mar 2020 – Jul 2026 |
| LP-Butler A G-2-289053 | BPX Operating Company only | Eagleville (Eagle Ford-2) | DE Witt | 1 | 0 | 2.12M | Mar 2020 – Jul 2026 |
| LP-Butler a- Jordan a SA 1 G-2-289055 | BPX Operating Company only | Eagleville (Eagle Ford-2) | DE Witt | 1 | 0 | 1.08M | Mar 2020 – Jul 2026 |
| Butler, B. C. et AL G-2-53709 | Sure Flow Oil & Gas, Inc. only | McCaskill (Wilcox M-2) | — | 1 | 0 | 0 | Jan 1993 – Jun 2013 |